Multi-tiered workstation



FIG. 1 is a front perspective view of a multi-tiered workstation;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines shown in FIGS. 1-7 illustrate portions of the multi-tiered workstation that form no part of the claimed design. The bottom view of the multi-tiered workstation shown in FIGS. 1-7 forms no part of the claimed design. Dash-dot-dash portions shown in FIGS. 1-3 represent surface boundaries of the claimed design and form no part of the claimed design. 

CLAIM The ornamental design for a multi-tier workstation, as shown and described. 